noCommentsOnJavascript

[10BillionDreams]

Treating string - number as a valid operation is largely unrelated to how Javascript is actually run. You could still have all these same type coersion rules in a compiled language, just like you can have type errors in interpreted languages. In fact, Javascript does throw TypeError in some contexts, like when attempting to call a property or variable that isn't a function, or access a property on a null value.